@User Cool, python is fine, am already using python to extract data / plot ngspice simulations. I'll see how I go once you've put the models up, at this stage I don't know how much work is involved, but a script to run some cells (i.e. inverters) through ngspice and extract the parameters (and generate prm files) shouldn't be too much work, I can make it publicly available and other people could extend it if need be.